Both my boys are now adults.
DS1 has a very uncommon name, it's never been on the top100 since he was born and I've only once come across another one in real life.
DS2 has a name which is uncommon but which has sometimes made it into the top 100, although not in the year he was born and not recently either.
I have a name which was incredibly popular in the late 60s/early 70s and in secondary school there were 3 if us with that name in my class. I hated it which is why we went for more uncommon names for our DC.
When I was pregnant with ds2 one of my favourite names was Noah. My mother who was a primary school head at the time said that he would get teased because it was such an old fashioned name, so I ruled it out. 20 years later and it is one of the most popular boys names in the UK.